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    Analysis of Turbo Code Behavior with Extrinsic Information Transfer Charts in High-Speed Wireless Data Services

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    IJITN Analysis of Turbo Code ...
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    Author
    Lokshina, Izabella V.
    Zhong, Hua
    Keyword
    Communication
    Extrinsic Information Transfer (EXIT)
    Wireless data services
    Reduced numerical complexity
    Turbo codes
    Journal title
    International Journal of Interdisciplinary Telecommunications and Networking
    Date Published
    2017
    
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/20.500.12648/7147
    Abstract
    This paper examines turbo codes that are currently introduced in many international standards and implemented in numerous advanced communication systems, and evaluates the process of extrinsic information transfer (EXIT). The convergence properties of the iterative decoding process, associated with a given turbo-coding scheme, are estimated using the analysis technique based on so-called extrinsic information transfer (EXIT) charts. This approach provides a possibility to predict the bit-error rate (BER) of a turbo code system with only the extrinsic information transfer chart. It is shown that extrinsic information transfer charts are powerful tools to analyze and optimize the convergence behavior of iterative systems utilizing the turbo principle, i.e., systems exchanging and refining extrinsic information. The idea is to consider the associated soft-input soft-output (SISO) stages as information processors, which map input a priori log likelihood ratios (LLRs) onto output extrinsic LLRs, the information content being obviously assumed to increase from input to output, and introduce them to the design of turbo systems without the reliance on extensive simulation. Compared with the other methods for generating extrinsic information transfer functions, the suggested approach provides insight into the iterative behavior of linear turbo systems with substantial reduction in numerical complexity.
    Citation
    Lokshina, I., & Zhong, H. (2017). Analysis of Turbo Code Behavior with Extrinsic Information Transfer Charts in High-Speed Wireless Data Services. International Journal of Interdisciplinary Telecommunications and Networking (IJITN), 9(4), 26-36. http://doi.org/10.4018/IJITN.2017100104
    DOI
    10.4018/IJITN.2017100104
    Description
    IGI Global's Fair Use Policy - For Subscription-Based Publications IGI GLOBAL AUTHORS, UNDER FAIR USE CAN: Post the final typeset PDF (which includes the title page, table of contents and other front materials, and the copyright statement) of their chapter or article (NOT THE ENTIRE BOOK OR JOURNAL ISSUE), on the author or editor's secure personal website and/or their university repository site. (from https://www.igi-global.com/about/rights-permissions/content-reuse/ on 3/3/2022)
    ae974a485f413a2113503eed53cd6c53
    10.4018/IJITN.2017100104
    Scopus Count
    Collections
    School of Liberal Arts and Business - Scholarly and Creative Works
    SUNY Oneonta Scholarly and Creative Works

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